Cladocera

 
Pronunciation: /kləˈdɒs(ə)rə/

plural noun

Zoology
  • an order of minute branchiopod crustaceans which includes the water fleas. They typically have a transparent shell enclosing the trunk, and large antennae which are used for swimming.

Origin:

modern Latin (plural), from Greek klados 'branch or root' + keras 'horn' (because of the branched antennae)